What is Co-witness? Red Dot Optic Slide Cuts

This video showcases two custom Glock 19 pistols modified by GlockStore for their new Nashville Showroom. Lenny Magill demonstrates these unique builds, highlighting various custom parts and modifications available. The video emphasizes GlockStore's long history of Glock customization and their ability to bring any vision to life. Viewers are encouraged to visit the website's custom build gallery to see more examples of their work, from subtle enhancements to extreme builds.

This guide details the process of having a Glock slide milled for a red dot optic, a modification popularized by GlockStore. It emphasizes the benefits of milling over dovetail mounts for a lower optic profile and the importance of co-witnessing with suppressor-height sights. The process involves sending the slide to GlockStore, where CNC milling ensures a precise fit for popular optics like the Trijicon RMR.

This guide details how to comply with the ATF's recent ruling on pistol braces, as explained by Lenny Magill, owner of GlockStore. It outlines three primary options: obtaining an SBR tax stamp, converting the firearm to a legal rifle, or removing the brace. Crucially, it warns against improper storage of removed braces to avoid constructive possession charges.

This guide details how to replace the magazine follower in a Glock double-stack magazine with a visually distinct 'Slushy Blue' polymer follower. The process, demonstrated by Lenny Magill from GlockStore, involves using a specialized tool for disassembly and reassembly, offering a simple modification to personalize and identify your magazines. The video highlights the ease of this upgrade for common Glock calibers like 9mm and .40 S&W.

This guide demonstrates the modularity between the new Glock 47 and the popular Glock 19 Gen 5. Expert instructor Lenny Magill shows how slides and frames can be interchanged, highlighting that both models share the same Glock 19 Gen 5 guide rod. This offers significant customization potential for users.

This guide details an active shooter response strategy demonstrated by Lenny Magill, founder of GlockStore. It emphasizes situational awareness, drawing from concealment, engaging multiple threats effectively with rapid fire, and securing the scene post-engagement. The instruction highlights proficient firearm handling and tactical decision-making under duress.